Oil-guard for loom shedding-cams.



No. 664,339. v y Patented Dec. I8, |900. E. S.`ST|MPSON.

UIL GUARD FUR LOM SHEDDING -CAMS.'

v (Application mea sepzfv., 1900.)

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UNITED STATES .PATENT OFFICE.

EDWARD S. STIMPSON, OF HOPDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF SAME PLACE.

OIL-GUARD FOR LOOM SHEDDlNG-CAMS.

SPECIFICATION forming part of Letters Patent No. 664,339, dated December 18, 1900.

Application led September 27, 1900. Serial No. 31,302. (No model.)

To @ZZ 7,077,071?, it may concern,.-

Beit known that I, EDWARD S. SrIMPsoN, a cit izen of the United States, residing at Hopedale, county of Worcester, State of Massachusetts, have invented an Improvementin Oil- Guards for Loom Shedding-Oams, of which the following description, in connection with the accompanying drawings,is a specification, like letters on the drawings representing like 1o parts.

This invention relates more particularly to the shedding mechanism for looms; and it has for its special object the production of means for preventing the shedding-cams from throwing oil upon the warp during the running of the loom.

The shedding-cams are usually located near the warp-beam and in their rotation they frefluently throw drops of oil upon the warp,

zo forming grease-spots, which must be later removed from the cloth. In-my present inventionI have provided each shedding-cam with an oil-guard which is mounted to follow the movement of the cam, the guard beinginter- 2 5 posed between the lubricating portion of the cam and the warp-beam.

Figure l is a cross-sectional View of a portion of the loom with one embodiment of my invention applied thereto, the warp-beam being partly shown in dotted lines; and Fig. 2 is a perspective view of one of the oil-guards shown in Fig. l.

The cam-shaft CX, the harness-cams C C2 thereon, adapted to coperate, respectively,

with suitable rolls t t2 on the harness-treadle T T2, the harnesses H, and the warp-beam D (see dotted lines, Fig. l) may be and are of any wellknown or usual construction in looms.

4o Referring to Fig. l, it will be seen that the shedding-cams are quite near the circumference of the warp-beam, and in order to prevent any oil from being thrown upon the warp by the cams I have interposed an oilguard G between each cam and the warpbeam. In the present embodiment of my invention the guard comprises an elongated plate g, preferably provided with downturned anges g at its longitudinal edges,said ianges 5o gradually being extended beyond its opposite end and downturned, as at g2, each down turned portion having an open slot g3 therein, as best shown in Fig. 2. Nearitsdownturned portions g2 the flanges are provided with depending ears g4, which, as shown in Fig. l, straddle the treadle upon which the guard is mounted, I having herein shown the guard as fulcrumed on the pin tx, extended through the treadle, back of its antifriction-roll, the

slots g3 receiving and straddling the projecting ends of the pin. The upper end of the guard is extended forward and upwardly and rests by its own weight against the perimeter of the cam, and obviously as the cam rotates the guard will rock on its fulcrum 15X and will follow the movement of the cam, remaining in contact with its lubricated surface. The

-guard is slightly concaved in the direction of cam, and inasmuch as the guard is directly interposed between the cam and the warpbeam no oil can be thrown from the loom. The ears g4, straddling the treadle as they do, prevent lateral movement of the guard, the anges g serving to strengthen and stiften the latter.

So far as I am aware it is broadlynew to provide an oil-guard for a rotating cam, the guard being so mounted as. to follow and remain in contact with the lubricated surface of the cam, and accordingly my invention is not restricted to the precise construction and arrangementhereinillustrated and described, as the same may be modified or rearranged without departing from the spirit and scope of my invention.

Having described my invention, What I claim, and desire to secure by Letters Patent, 1s-

1. In a loom, shedding-cams, and oil-guards therefor, mounted to follow the movement of the cams.

2. In a loom, a shedding-cam, and a movable oil-guard for and in contact with the cam.

3. In aloom, shedding-cams, treadles actuated thereby, and an oil-guard for each cam, mounted on its cooperating treadle'.

4. In a loom, shedding-cams, treadles actuated thereby, and an oil-guard for each cam IOO pivotally mounted on its ooperating treadie and continuously in Contact with the Inbri- -ro and in continuous Contact With thelubrieated cated surface of the latter. f surface of the cam. In testimony whereof I have signed my 5. A rotating cam, and an oil-guard adjeu name to this specification in the presence of 5 cent thereto, and mounted to follow the movetwo subscribing Witnesses.

ment of the lubricated surface thereof. EDWARD S. STIMPSON.

6. In a loom, the Warp-beam, shedding- Witnesses:

cams,and pivotally-mounted oil-guards there- GEORGE OTIS DRAPER,

for interposed between the beam and cams ERNEST W. WOOD. 

